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featured

GeeksforGeeks

DSA tutorials, practice problems, and interview prep

4.5
Free tier
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Free

featured

LeetCode

Interview-style coding problems with a judge

4.6
Free tier
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Free

featured

HackerRank

Coding challenges and interview practice

4.5
Free
Get it here↗

Free practice

SpecGeeksforGeeksLeetCodeHackerRank
CategoryEducation & LearningEducation & LearningEducation & Learning
PricingFree + paid coursesFree + PremiumFree practice + paid hiring products
Rating4.5 (420,000)4.6 (92,000)4.5 (186,000)
Community88/10090/10087/100
Tierfeaturedfeaturedfeatured
Best fordsa, coding, interview, tutorialsalgorithms, interview, coding, practicecoding, interview, algorithms, practice
Top features
  • ·DSA tutorials
  • ·Practice problems
  • ·Interview prep
  • ·Thousands of judged problems
  • ·Contests and discussion
  • ·Company-tagged sets on Premium
  • ·Language tracks and challenges
  • ·Interview prep kits
  • ·Certifications